Higher-Resolution Determination of Zero-Offset Common-Reflection-Surface Stack Parameters

  • Asgedom E
  • Gelius L
  • Tygel M
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Abstract

We developed a higher resolution method for the estimation of the three travel-time parameters that are used in the 2D zero-offset, Common-Reflection-Surface stack method. The underlying principle in this method is to replace the coherency measure performed using semblance with that of MUSIC (multiple signal classification) pseudospectrum that utilizes the eigenstructure of the data covariance matrix. The performance of the two parameter estimation techniques (i.e., semblance and MUSIC) was investigated using both synthetic seismic diffraction and reflection data corrupted with white Gaussian noise, as well as a multioffset ground penetrating radar (GPR) field data set. The estimated parameters employing MUSIC were shown to be superior of those from semblance.

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Asgedom, E. G., Gelius, L. J., & Tygel, M. (2011). Higher-Resolution Determination of Zero-Offset Common-Reflection-Surface Stack Parameters. International Journal of Geophysics, 2011, 1–10. https://doi.org/10.1155/2011/819831

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